Which concept explains that development results from the interaction of biological, psychological, and sociocultural forces throughout a person's life?

The life course perspective is a theoretical framework that emphasizes the interplay of biological, psychological, and sociocultural factors in shaping an individual's development throughout their lifespan. It acknowledges that development is not a linear progression but is influenced by various contexts such as historical events, social changes, and cultural norms. This perspective highlights how different life times and transitions interact with individual choices and social structures, illustrating that development is a dynamic process influenced by a multitude of factors that can vary widely across different individuals and cultures.

In contrast, the other concepts listed do not specifically address the multifaceted interaction of forces over a person's entire lifetime. Developmental milestones focus on the significant stages of growth and achievement rather than the interactions of various influences. Humanistic psychology emphasizes personal growth and self-actualization but does not inherently account for the broader sociocultural context influencing development. Behavioral conditioning is primarily concerned with learning processes associated with behavioral responses rather than the comprehensive view of development shaped by diverse forces over time.